Evidence map›Paper›PMID 34677299›Full record

ArticleJournal of imaging2021

Mitral Valve Segmentation Using Robust Nonnegative Matrix Factorization.

Hannah Dröge, Baichuan Yuan, Rafael Llerena, Jesse T Yen, Michael Moeller, Andrea L Bertozzi

Abstract read
In one paragraph

Article in Journal of imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Hannah DrögeDepartment of Electrical Engineering and Computer Science, University of Siegen, 57076 Siegen, Germany.ORCID 0000-0001-7163-4279
Baichuan YuanDepartment of Mathematics, University of California, Los Angeles, CA 90095, USA.
Rafael LlerenaNon-Invasive Cardiology Department, Keck Medical Center of University of Southern California, Los Angeles, CA 90033, USA.
Jesse T YenDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Michael MoellerDepartment of Electrical Engineering and Computer Science, University of Siegen, 57076 Siegen, Germany.
Andrea L BertozziDepartment of Mathematics, University of California, Los Angeles, CA 90095, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Analyzing and understanding the movement of the mitral valve is of vital importance in cardiology, as the treatment and prevention of several serious heart diseases depend on it. Unfortunately, large amounts of noise as well as a highly varying image quality make the automatic tracking and segmentation of the mitral valve in two-dimensional echocardiographic videos challenging. In this paper, we present a fully automatic and unsupervised method for segmentation of the mitral valve in two-dimensional echocardiographic videos, independently of the echocardiographic view. We propose a bias-free variant of the robust non-negative matrix factorization (RNMF) along with a window-based localization approach, that is able to identify the mitral valve in several challenging situations. We improve the average f1-score on our dataset of 10 echocardiographic videos by 0.18 to a f1-score of 0.56.

Indexed as

echocardiographymitral valverobust non-negative matrix factorizationsegmentation

Identifiers

PMID34677299
PMCPMC8541511

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.